After looking at other trimmers, I bought this based on the great reviews and second, because I had a 12" Bidex Rotary Trimmer which works great, but I needed a second and larger capacity trimmer. I cut lots of cardstock with it and so far I'm very pleased, although the sheet capacity is obviously not as high as plain paper (up to 6 sheets works pretty well-less than I expected but much better than smaller one). I like that it comes with an extra cutting blade, and it's not as big to move around as I expected--still portable and very sturdy. I really like that it has a transparent piece where the blade cuts as I wanted that feature to see paper underneath but don't remember seeing it advertised. Very happy customer!